| 摘要 |
<P>PROBLEM TO BE SOLVED: To continue elevator service (operation), by operating an elevator driving semiconductor element in a range of a limit value of heat radiating performance, by calculating the heat radiating performance by detecting clogging of a dustproof filter. <P>SOLUTION: This elevator control device includes an elevator driving means having an elevator driving element, the dustproof filter, a detecting means for detecting the clogging of the dustproof filter, and an elevator control means for controlling the elevator driving means. The elevator control means determines the heat radiating performance of the elevator driving element based on a clogging quantity of the dustproof filter detected by the detecting means (S3), and arithmetically operates a limit value of an acceleration speed and torque to the elevator driving means based on this heat radiating performance (S5), and continues the elevator operation by outputting the limit value to the elevator driving means (S8) when the limit value of the acceleration speed and the torque is smaller than ordinary acceleration speed and torque of causing no clogging (S6). <P>COPYRIGHT: (C)2010,JPO&INPIT |
